QueryBuilder queryBuilder = queryCommand.convertWildcardQuery(queryContext, wildcardQuery, 1.0f);
        assertNotNull(queryBuilder);

        // Should not add empty highlight
        assertTrue(queryContext.getHighlightedQuerySet().isEmpty());
    }

    public void test_execute_withWildcardQuery() throws Exception {

        return escapeSlow(string, index);
      }
    }
    return string;
  }

  /**
   * Returns the escaped form of the given character, or {@code null} if this character does not
   * need to be escaped. If an empty array is returned, this effectively strips the input character
   * from the resulting text.
   *
   * <p>If the character does not need to be escaped, this method should return {@code null}, rather

        // It should throw NullPointerException
        assertThrows(NullPointerException.class, () -> {
            new PropertyConfiguration(null);
        });
    }

    @Test
    @DisplayName("Should handle empty properties")
    void testEmptyProperties() throws CIFSException {
        // Given
        Properties emptyProps = new Properties();

        // When

		t.Fatal(err)
	}

	accessID := globalActiveCred.AccessKey
	testCases := []struct {
		authString    string
		expectedError APIErrorCode
	}{
		// Test case - 1.
		// Case with empty V2AuthString.
		{
			authString:    "",
			expectedError: ErrAuthHeaderEmpty,
		},
		// Test case - 2.
		// Test case with `signV2Algorithm` ("AWS") not being the prefix.
		{
			authString:    "NoV2Prefix",

        final String themeName = artifact.getName().substring(ArtifactType.THEME.getId().length() + 1);
        if (StringUtil.isBlank(themeName)) {
            throw new ThemeException("Theme name is empty: " + artifact);
        }
        return themeName;
    }

    /**
     * Recursively deletes a directory and all its contents.
     * Does not throw exceptions, only logs warnings if deletion fails.
     *

        assertEquals(cause, exception.getCause());
        assertEquals("Invalid argument", exception.getCause().getMessage());
    }

    public void test_constructorWithEmptyMessage() {
        // Test constructor with empty message
        String message = "";
        GsaConfigException exception = new GsaConfigException(message);

        assertNotNull(exception);
        assertEquals("", exception.getMessage());

        }
        if (body.documents.isEmpty()) {
            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, "documents is empty."));
        }
        final String indexFieldId = fessConfig.getIndexFieldId();
        final String indexFieldDocId = fessConfig.getIndexFieldDocId();

            public String getIndexFieldSegment() {
                return "segment";
            }

            @Override
            public String get(String key) {
                // Return empty string instead of null
                return "";
            }
        };

        ComponentUtil.setFessConfig(fessConfig);

        // Initialize QueryFieldConfig

        healthyChannel.setState(ChannelState.ESTABLISHED);

        // Use reflection or package-private method to add channel for testing
        // For now, just test the empty case
        assertEquals(0, channelManager.getHealthyChannels().size());
    }

    @Test
    void testChannelSelection() {
        try {
            channelManager.selectChannel(mockMessage);

    /**
     * Return the sAMAccountName of this SID unless it could not
     * be resolved in which case the numeric RID is returned. If this
     * SID is a domain SID, this method will return an empty String.
     *
     * @return the account name
     */
    String getAccountName();

    /**
     * Return the domain name of this SID unless it could not be